/*
 * Licensed to the Apache Software Foundation (ASF) under one or more
 * contributor license agreements.  See the NOTICE file distributed with
 * this work for additional information regarding copyright ownership.
 * The ASF licenses this file to You under the Apache License, Version 2.0
 * (the "License"); you may not use this file except in compliance with
 * the License.  You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 *  See the License for the specific language governing permissions and
 *  limitations under the License.
 */

package org.apache.skywalking.apm.plugin.spring.mvc.commons.interceptor;

public class StackDepth {

    private int stackDepth;

    public StackDepth() {
        this.stackDepth = 0;
    }

    public int depth() {
        return this.stackDepth;
    }

    public StackDepth increment() {
        this.stackDepth++;
        return this;
    }

    public StackDepth decrement() {
        this.stackDepth--;
        return this;
    }
}
